Casa Wakasa / wHY Architecture

Architects: wHY Architecture
Location: Osaka,
Area: 279 sqm
Project Year: 2006
Program: Private Residence

Casa Wakasa, home to a young family of four is located in the suburbs of Osaka, Japan. The house attempts to be both a reflection into contemporary Japan’s family life (sense of family vs. privacy) as well as a solution to balance individual freedom and space with collective activities and time.

The basic unit of the house is an amalgam of a room and an outdoor courtyard; each room for each member of the family has an integrated garden as its counterpart.


The house design gives emphasis and space to the glass-sided living room, surrounded by open gardens. The father who works as a dentist from 9AM to 9PM everyday wants to have a place in his own house that at the end of the day he could withdraw even from his family, his wife and two young daughters, to pursue the subjects of his personal interest – music, films and books. This open glass room, connecting to the house only through an underground corridor, is the sanctuary where he can be himself. The family has meals and activities together in the family living and dining room but each one of them could withdraw into their own world in their own room / garden.

The spine promenade / passage linking all the rooms is designed as an “engawa”, the semi-outdoor transitional space seen in traditional Japanese architecture. This implies its ambiguous and transitional essence; it is not a room yet functions as one, not merely a corridor but used as linkage. Like traditional “engawa”, it is the true linkage in many senses; it links the indoor rooms with outdoor gardens, links spaces together into a composition, and it links multiple individual worlds into a family.

Cite: "Casa Wakasa / wHY Architecture" 12 Dec 2008. ArchDaily. Accessed 22 May 2015. <>
  • Cameron

    Another example of a beautiful, contemporary, culturally influenced Japanese design piece.
    wHY do they not cease to please?

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  • Alex (CorbusieLer)

    Project Hollywood House – wHY Architecture

  • Contemporary Art

    Wow, this is beautiful. It looks great lit up at night, and the interior manages to be fairly warm in spite of the concrete and steel.

  • roadkill

    obvious thermal bridging is not an issue in Japan… how do they get away with it?

    • Gainesville Dentists

      ” how do they get away with it?” – you must be american :)

  • MZ


    Climate. Subtropical climate make it unnecessary to think about such things. I know what kind of technical difficulties it means to build a concrete building in nordic climate but there are beautiful examples in Switzerland, in “Passivhaus” standard as well.

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